RANKING · 2020 CENSUS · 36 SHOWN OF 36

Most densely populated, Idaho cities · 2020

Idaho cities ranked by residents per square mile (2023). This list covers the 36 cities in Idaho that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Rexburg, IDID40,3343,897+128%

02Moscow, IDID26,7213,681+19%

03Coeur d'Alene, IDID58,1793,390+58%

04Meridian, IDID142,9883,191+237%

05Garden City, IDID13,0473,018+16%

06Rupert, IDID6,4602,954+8%

07Emmett, IDID8,9002,885+39%

08Nampa, IDID120,3842,882+93%

09Boise City, IDID238,4292,787+27%

10Shelley, IDID5,3032,650+25%

11Twin Falls, IDID56,2162,644+50%

12Caldwell, IDID76,6292,551+131%

13Fruitland, IDID7,2132,529+60%

14Chubbuck, IDID16,8232,508+61%

15Idaho Falls, IDID71,7852,440+28%

16Hailey, IDID10,0532,330+48%

17Kimberly, IDID5,7982,275+77%

18Mountain Home, IDID16,7792,268+43%

19Ammon, IDID20,1192,197+186%

20Jerome, IDID13,7312,182+59%

21Rigby, IDID5,7572,084+68%

22Post Falls, IDID46,7152,075+123%

23Sandpoint, IDID10,6452,020+26%

24Blackfoot, IDID13,3612,009+18%

25Payette, IDID8,8131,987+15%

26Lewiston, IDID34,7171,958+11%

27Weiser, IDID6,2491,888+5%

28Burley, IDID12,4091,731+26%

29Pocatello, IDID58,7711,678+9%

30Middleton, IDID12,6001,542+216%

31Hayden, IDID17,3631,479+70%

32Rathdrum, IDID13,2271,325+91%

33Star, IDID20,8741,143+519%

34Kuna, IDID31,525935+346%

35Eagle, IDID34,658935+174%

36Preston, IDID6,177819+19%

SHOWING 1–36 OF 36

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES